KUSA - Sunday marked the one year since a party turned into a riot just blocks from CSU's campus, and police say they are working actively to try and prevent another similar event this spring.

On April 27, 2013, police responded to a crowded street and tried to get the crowd to disperse.

"Every three or four years we see a party go out of control," said Jerry Schiager, Deputy Chief Patrol Division with Fort Collins Police.

"The city of Fort Collins doesn't want to be known as the party riot capital of the country," added Schiager.

Last year's riot came after the 2011 Ram's Point Pool Party, which garnered national attention.

Schiager pointed to the party registration program, a joint effort between the city of Fort Collins and CSU.

It started in 2009.

"Over and over again, students had said, if only I had a warning, if I'd just known that someone was frustrated I would have shut down my party," said Emily Allen, who serves as community liaison and runs party registration.

The innovative program gives those who plan the party the chance to report their own event to police if it gets out of control. In exchange, police are lenient.

Allen says fewer than 3 percent of more than 2,500 registered parties have resulted in citations since the program started.

Fort Collins police say that's what happened when a party just a couple of weeks ago drew police in riot gear.

"They called police, which is something we have encouraged them to do," said Schiager.

Our partners at the Fort Collins Coloradoan report that the party of roughly 200 people resulted in people throwing rocks and bottles at the officers.

But, police say, it could have been worse.

"A few years ago, that party probably wouldn't have been called in by anyone. It would have percolated for a few more hours. And then we've got a big problem," said Schiager.